@charset "utf-8";
*{
    /* 盒模型、超链接、去掉列表项标志*/
    margin: 
    font-size: 16px;
    font-family: 微软雅黑;
    margin: 0;
    padding: 0;
    text-decoration: none;
    list-style: none;
    color: #333;
    }
/* 1.左栏框：article元素 */
article{
    width: 266px;
    height: 517px;
    bord er: 1px solid red;
    background-color: #949494;
    color: #fff;
}
/* 2.左栏效果：列表项：颜色、垂直居中，相对定位【勾点位】*/
article ul.sidebar li{
    bord er: 1px solid red;
    color: #fff;
    height: 50px;
    line-height: 50px;
	text-align: left;
	margin-left: 30px;
	position: relative;/* 勾点位*/
	
}
article ul.sidebar li:hover{
	background-color: #ff5500;
	margin: 0;
	text-align: center;
	
}
/* 3.左栏弹出:使用绝对定位【钩子】*/
article ul.sidebar div.outer{
	position: absolute;
	width: 500px;
	height: 517px;
	border: 1px solid red;
	left: 266px;
	/* 显示与隐藏 */
	display: block;
	/* 堆叠属性 */
	z-index: 999;
}
.sidebar span{
	float: right;
	color: white;
}